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What, oh, what are those actinides doing?
August 20, 2007BOSTON - Researchers at Pacific Northwest National Laboratory are uniting theory, computation and experiment to discover exactly how heavy elements, such as uranium and technetium, interact in their environment.
As part of that effort, scientists have combined sensitive experimental measurements with fi rst principle electronic structure calculations to measure, and to really understand, the structural and bonding parameters of uranyl, the most common oxidation state of uranium in systems containing water.
The insights were achieved by PNNL scientist Bert de Jong and associates Gary Groenewold of Idaho National Laboratory and Michael Van Stipdonk of Wichita State University, employing the supercomputing resources of the William R. Wiley Environmental Molecular Sciences Laboratory (www.emsl.pnl.gov), a Department of Energy national scientifi c user facility located at PNNL.
The large number and behavior of electrons in heavy elements makes most of them extremely diffi cult to study. De Jong said that advancements in computing power and theory are enabling computational actinide chemistry to contribute significantly to the understanding and interpretation of experimental chemistry data, as well as to predicting the chemical and physical properties of heavy transition metal, lanthanide and actinide complexes.
"Now we can make sure we get the right answer for the right reason," de Jong said, adding that results obtained from the calculations are an invaluable supplement to current, very expensive and often hazardous experimental studies.
Researchers are discovering how actinides such as uranium in solution interact with magnetite and other mineral surfaces.
Discoveries made using the new capabilities available to the growing field of computational actinide chemistry could have wide impact, from radioactive waste and cleanup challenges to the design and operation of future nuclear facilities.
DOE/Pacific Northwest National Laboratory
The large number and behavior of electrons in heavy elements makes most of them extremely diffi cult to study. De Jong said that advancements in computing power and theory are enabling computational actinide chemistry to contribute significantly to the understanding and interpretation of experimental chemistry data, as well as to predicting the chemical and physical properties of heavy transition metal, lanthanide and actinide complexes.
"Now we can make sure we get the right answer for the right reason," de Jong said, adding that results obtained from the calculations are an invaluable supplement to current, very expensive and often hazardous experimental studies.
Researchers are discovering how actinides such as uranium in solution interact with magnetite and other mineral surfaces.
Discoveries made using the new capabilities available to the growing field of computational actinide chemistry could have wide impact, from radioactive waste and cleanup challenges to the design and operation of future nuclear facilities.
DOE/Pacific Northwest National Laboratory
Actinide Current Events and Actinide News RSSExotic Materials Using Neptunium, Plutonium Provide Insight into Superconductivity
Physicists at Rutgers and Columbia universities have gained new insight into the origins of superconductivity - a property of metals where electrical resistance vanishes - by studying exotic chemical compounds that contain neptunium and plutonium.
Computational actinide chemistry: Are we there yet?
Ever since the Manhattan project in World War II, actinide chemistry has been essential for nuclear science and technology.
A new understanding of crystal structure of actinide metals
Researchers have a better understanding of how the crystal structure of some metals becomes stable through magnetism. Magnetic stabilization of the crystal structures of metals is rare. In some metals, such as manganese, iron, and cobalt, the magnetic interaction energy is large enough to influence the crystal structure.
X-ray scattering techniques determine how dissolved metal ions interact in solution
Researchers at the Department of Energy's Argonne National Laboratory and the University of Notre Dame have successfully applied X-ray scattering techniques to determine how dissolved metal ions interact in solution.
Hotspots or Not? Isotopes Score One for Traditional Theory
One great beauty of plate tectonics theory is that it explains so many geological phenomena at one time. But plate tectonics could not explain the location of many volcanic islands - Hawaii, the Azores or the Galapagos Islands, often called "hotspots" - far from the edge of tectonic plates.
EU nuclear research key in the fight against cancer and illegal nuclear trafficking
A key player in the fight against cancer and illegal nuclear trafficking, the European Commission Joint Research Centre's Institute for Transuranium Elements (ITU) at Karlsruhe, Germany, today celebrates its 40th Anniversary. The ITU manages projects for nuclear research in fields such as radioactive waste management, nuclear forensics, radiation protection, detecting radiation in the environment, and other nuclear-related activities, including life-saving medical applications, for instance to cure cancer. The ITU also plays a key role in detecting, fingerprinting and tracking down nuclear materials across Europe - and beyond. It therefore contributes to the fight against nuclear smuggling a
Nuclear Research helps Safeguard our future: Fighting illegal nuclear trafficking & Passing on Expertise to Future Generations Of Scientists - Press Event 16-17/10/2003, Karlsruhe, Germany
The European Commission's Joint Research Centre plays a key role in detecting, fingerprinting, and tracking down nuclear materials across Europe - and beyond. It therefore contributes to the fight against nuclear smuggling and nuclear prolifera-tion, in co-operation with the International Atomic Energy Agency (IAEA). But the JRC also manages projects for nuclear waste management, radiation protection, and other nuclear-related activities. The JRC is offering journalists, on 16th & 17th October, a comprehensive media briefing on the occasion of the 40th anniversary of the Institute for Transuranium Elements. Encompassing expert presentations and a workshop on a range of nuclear research-relat
More Actinide Current Events and Actinide News Articles
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Lanthanide and Actinide Chemistry (Inorganic Chemistry: A Textbook Series) by Simon Cotton (Author) The only introduction into the exciting chemistry of Lanthanides and Actinides. The book is based on a number of courses on "f elements" The author has a long experience in teaching this field of chemistry Lanthanides have become very common elements in research and technology applications; this book offers the basic knowledge The book offers insights into a vast range of applications, from lasers to synthesis The Inorganic Chemistry: A Textbook series reflects the pivotal role of modern inorganic and physical chemistry in a whole range of emerging areas, such as materials chemistry, green chemistry and bioinorganic chemistry, as well as providing a solid grounding in established areas such as solid state chemistry, coordination chemistry, main... |
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The Periodic Table of the Elements: The Actinide Series DVD by Discovery Education The radioactive actinide series shines a light on the dangers and benefits of nuclear energy. | |
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The Chemistry of the Actinide Elements by Joseph J.; Seaborg, Clenn T. Katz (Author) | |
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CM Complex Cetyl Myristoleate - 90 - Softgel by Source Naturals, Inc. CM Complex contains cetyl myristoleate, an all-natural ester form of a fatty acid. Fatty acids have important functions in building and maintaining healthy cells and are used by the body as emulsifiers and lubricants. |
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Chemistry of the Actinide Elements Volume 2 by G.T. Seaborg (Author), J.J. Katz (Author), L.R. Morss (Author) X |
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Handbook on the Physics and Chemistry of Rare Earths : Lanthanides/Actinides: Physics - II by G.R. Choppin (Editor), K.A. Gschneidner (Editor), L. Eyring (Editor), G.H. Lander (Editor) This is the third volume of a three-volume set of reviews devoted to the interrelationships, similarities, differences and contrasts of the lanthanide and actinide series of elements. It comprises five chapters on the comparative physics and thermodynamics of the lanthanide and actinide materials. The first two chapters are concerned with neutron scattering studies, while the next two are concerned with physical property studies involving electronic, thermal and magnetic behaviors. The final chapter covers the thermodynamic properties of metallic systems. The first chapter compares the inelastic neutron scattering behaviours of the lanthanides and actinides. The next chapter concentrates on neutron scattering by heavy fermion single cyrstal materials, including metallic and... | |
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The Chemistry of the Actinide and Transactinide Elements (5 Volume Set) (v. 1-5) by Joseph J. Katz (Adapter), Lester R. Morss (Adapter), Norman M. Edelstein (Adapter), Jean Fuger (Adapter) The Chemistry of the Actinide and Transactinide Elements is a contemporary and definitive compilation of chemical properties of all of the actinide elements, especially of the technologically important elements uranium and plutonium, as well as the transactinide elements. In addition to the comprehensive treatment of the chemical properties of each element, ion, and compound from atomic number 89 (actinium) through to 109 (meitnerium), this multi-volume work has specialized and definitive chapters on electronic theory, optical and laser fluorescence spectroscopy, X-ray absorption spectroscopy, organoactinide chemistry, thermodynamics, magnetic properties, the metals, coordination chemistry, separations, and trace analysis. Several chapters deal with environmental science, safe handling,... |
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The Chemistry of the Actinide Elements by Joseph J. Katz (Author), Glenn T. Seaborg (Author) Entire book is in Chinese. 1962 translation of 1957 edition. | |
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LANTHANIDE/ACTINIDE CHEMISTRY: A Symposium Co-Sponsored by the Division of Inorganic Chemistry and the Division of Nuclear Chemistry and Technology At the 152nd Meeting of the American Chemical Society, New York, N. Y. , Sept. 13-14, 1966. by Paul R. Fields (Author), Therald Moeller (Author) | |
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Binary Actinide Oxides (Part 2) by D. Kaczorowski (Contributor), R. Troc (Contributor) In subvolume III/27C2 magnetic and related properties of binary actinide oxides have been compiled. This subvolume covers data obtained since 1980 and can therefore be regarded as supplement to volume III/12c. Part 27C1 deals with binary oxides of the lanthanide elements. Magnetic properties of the binary oxides of 3d transition elements are given in subvolume 27 G. |
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